<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>班长的钱</title>
    <script>
        //||
      var money = prompt("请输入班长口袋里的钱数");
      if ( money >= 2000) {
          alert("请大家吃西餐。"); 
        }else if ( money <2000 && money >= 1500) {
          alert("请大家吃快餐。");
        }else if ( money <= 1500 && money >= 1000) {
          alert("请大家喝饮料。");
        }else if ( money < 1000 && money >= 500) {
          alert("请大家吃棒棒糖。");
        }else {
          alert("提醒班长下次把钱带够。");
      }
    </script>
</head>
<body>
   
</body>
</html>